BSI-DSZ-CC-0786-2012
for
Infineon smartcard IC (Security Controller) M7794
A11 with optional RSA2048/4096 v1.02.013 EC
v1.02.013 and Toolbox v1.02.013
from
Infineon Technologies AG
BSI - Bundesamt für Sicherheit in der Informationstechnik, Postfach 20 03 63, D-53133 Bonn
Phone +49 (0)228 99 9582-0, Fax +49 (0)228 9582-5477, Infoline +49 (0)228 99 9582-111
Certification Report V1.0 CC-Zert-327 V4.6
BSI-DSZ-CC-0786-2012
Infineon smartcard IC (Security Controller) M7794 A11 with optional
RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox v1.02.013
from Infineon Technologies AG
PP Conformance: Security IC Platform Protection Profile, Version 1.0,
15 June 2007, BSI-CC-PP-0035-2007
Functionality: PP conformant plus product specific extensions
Common Criteria Part 2 extended
Assurance: Common Criteria Part 3 conformant
EAL 4 augmented by ALC_DVS.2, ATE_DPT.2 and
AVA_VAN.5
Common Criteria
Recognition
Arrangement
for components up to
EAL 4
The IT product identified in this certificate has been evaluated at an approved evaluation facility using the
Common Methodology for IT Security Evaluation (CEM), Version 3.1 extended by advice of the Certification
Body for components beyond EAL 5 and guidance specific for the technology of the product for conformance
to the Common Criteria for IT Security Evaluation (CC), Version 3.1.
This certificate applies only to the specific version and release of the product in its evaluated configuration
and in conjunction with the complete Certification Report.
The evaluation has been conducted in accordance with the provisions of the certification scheme of the
German Federal Office for Information Security (BSI) and the conclusions of the evaluation facility in the
evaluation technical report are consistent with the evidence adduced.
This certificate is not an endorsement of the IT product by the Federal Office for Information Security or any
other organisation that recognises or gives effect to this certificate, and no warranty of the IT product by the
Federal Office for Information Security or any other organisation that recognises or gives effect to this
certificate, is either expressed or implied.
Bonn, 27 January 2012
For the Federal Office for Information Security
Bernd Kowalski L.S.
Head of Department
Bundesamt für Sicherheit in der Informationstechnik
Godesberger Allee 185-189 - D-53175 Bonn - Postfach 20 03 63 - D-53133 Bonn
Phone +49 (0)228 99 9582-0 - Fax +49 (0)228 9582-5477 - Infoline +49 (0)228 99 9582-111
Certification Report BSI-DSZ-CC-0786-2012
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BSI-DSZ-CC-0786-2012 Certification Report
Preliminary Remarks
Under the BSIG1
Act, the Federal Office for Information Security (BSI) has the task of
issuing certificates for information technology products.
Certification of a product is carried out on the instigation of the vendor or a distributor,
hereinafter called the sponsor.
A part of the procedure is the technical examination (evaluation) of the product according
to the security criteria published by the BSI or generally recognised security criteria.
The evaluation is normally carried out by an evaluation facility recognised by the BSI or by
BSI itself.
The result of the certification procedure is the present Certification Report. This report
contains among others the certificate (summarised assessment) and the detailed
Certification Results.
The Certification Results contain the technical description of the security functionality of
the certified product, the details of the evaluation (strength and weaknesses) and
instructions for the user.
1
Act on the Federal Office for Information Security (BSI-Gesetz - BSIG) of 14 August 2009,
Bundesgesetzblatt I p. 2821
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Certification Report BSI-DSZ-CC-0786-2012
Contents
A Certification........................................................................................................................7
1 Specifications of the Certification Procedure.................................................................7
2 Recognition Agreements................................................................................................7
2.1 European Recognition of ITSEC/CC – Certificates (SOGIS-MRA).........................7
2.2 International Recognition of CC – Certificates (CCRA)...........................................8
3 Performance of Evaluation and Certification..................................................................8
4 Validity of the Certification Result...................................................................................9
5 Publication......................................................................................................................9
B Certification Results.........................................................................................................11
1 Executive Summary.....................................................................................................12
2 Identification of the TOE...............................................................................................14
3 Security Policy..............................................................................................................16
4 Assumptions and Clarification of Scope.......................................................................16
5 Architectural Information...............................................................................................16
6 Documentation.............................................................................................................17
7 IT Product Testing.........................................................................................................17
8 Evaluated Configuration...............................................................................................18
9 Results of the Evaluation..............................................................................................19
9.1 CC specific results.................................................................................................19
9.2 Results of cryptographic assessment....................................................................20
10 Obligations and Notes for the Usage of the TOE.......................................................20
11 Security Target............................................................................................................21
12 Definitions...................................................................................................................21
12.1 Acronyms.............................................................................................................21
12.2 Glossary...............................................................................................................24
13 Bibliography................................................................................................................25
C Excerpts from the Criteria................................................................................................27
D Annexes...........................................................................................................................37
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BSI-DSZ-CC-0786-2012 Certification Report
A Certification
1 Specifications of the Certification Procedure
The certification body conducts the procedure according to the criteria laid down in the
following:
● BSIG2
● BSI Certification Ordinance3
● BSI Schedule of Costs4
● Special decrees issued by the Bundesministerium des Innern (Federal Ministry of the
Interior)
● DIN EN 45011 standard
● BSI certification: Procedural Description (BSI 7125) [3]
● Common Criteria for IT Security Evaluation (CC), Version 3.15
[1]
● Common Methodology for IT Security Evaluation, Version 3.1 [2]
● BSI certification: Application Notes and Interpretation of the Scheme (AIS) [4]
2 Recognition Agreements
In order to avoid multiple certification of the same product in different countries a mutual
recognition of IT security certificates - as far as such certificates are based on ITSEC or
CC - under certain conditions was agreed.
2.1 European Recognition of ITSEC/CC – Certificates (SOGIS-MRA)
The SOGIS-Mutual Recognition Agreement (SOGIS-MRA) Version 3 became effective in
April 2010. It defines the recognition of certificates for IT-Products at a basic recognition
level and in addition at higher recognition levels for IT-Products related to certain technical
domains only.
The basic recognition level includes Common Criteria (CC) Evaluation Assurance Levels
EAL1 to EAL 4 and ITSEC Evaluation Assurance Levels E1 to E3 (basic). For higher
recognition levels the technical domain Smart card and similar Devices has been defined.
It includes assurance levels beyond EAL 4 resp. E3 (basic). In Addition, certificates issued
for Protection Profiles based on Common Criteria are part of the recognition agreement.
2
Act on the Federal Office for Information Security (BSI-Gesetz - BSIG) of 14 August 2009,
Bundesgesetzblatt I p. 2821
3
Ordinance on the Procedure for Issuance of a Certificate by the Federal Office for Information Security
(BSI-Zertifizierungsverordnung, BSIZertV) of 07 July 1992, Bundesgesetzblatt I p. 1230
4
Schedule of Cost for Official Procedures of the Bundesamt für Sicherheit in der Informationstechnik
(BSI-Kostenverordnung, BSI-KostV) of 03 March 2005, Bundesgesetzblatt I p. 519
5
Proclamation of the Bundesministerium des Innern of 12 February 2007 in the Bundesanzeiger dated
23 February 2007, p. 3730
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Certification Report BSI-DSZ-CC-0786-2012
As of September 2011 the new agreement has been signed by the national bodies of
Austria, Finland, France, Germany, Italy, The Netherlands, Norway, Spain, Sweden and
the United Kingdom. Details on recognition and the history of the agreement can be found
at https://www.bsi.bund.de/zertifizierung.
The SOGIS-MRA logo printed on the certificate indicates that it is recognised under the
terms of this agreement by the nations listed above.
2.2 International Recognition of CC – Certificates (CCRA)
An arrangement (Common Criteria Recognition Arrangement) on the mutual recognition of
certificates based on the CC Evaluation Assurance Levels up to and including EAL 4 has
been signed in May 2000 (CCRA). It includes also the recognition of Protection Profiles
based on the CC.
As of September 2011 the arrangement has been signed by the national bodies of:
Australia, Austria, Canada, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, India, Israel, Italy, Japan, Republic of Korea, Malaysia, The Netherlands, New
Zealand, Norway, Pakistan, Republic of Singapore, Spain, Sweden, Turkey, United
Kingdom, United States of America. The current list of signatory nations and approved
certification schemes can be seen on the website: http://www.commoncriteriaportal.org
The Common Criteria Recognition Arrangement logo printed on the certificate indicates
that this certification is recognised under the terms of this agreement by the nations listed
above.
The Common Criteria Recognition Arrangement logo printed on the certificate indicates
that this certification is recognised under the terms of this agreement. This evaluation
contains the components ALC_DVS.2, ATE_DPT.2 and AVA_VAN.5 that are not mutually
recognised in accordance with the provisions of the CCRA. For mutual recognition the
EAL4 components of these assurance families are relevant.
3 Performance of Evaluation and Certification
The certification body monitors each individual evaluation to ensure a uniform procedure, a
uniform interpretation of the criteria and uniform ratings.
The product Infineon smartcard IC (Security Controller) M7794 A11 with optional
RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox v1.02.013 has undergone the
certification procedure at BSI.
The evaluation of the product Infineon smartcard IC (Security Controller) M7794 A11 with
optional RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox v1.02.013 was conducted
by TÜV Informationstechnik GmbH. The evaluation was completed on 18 January 2012.
The TÜV Informationstechnik GmbH is an evaluation facility (ITSEF)6
recognised by the
certification body of BSI.
For this certification procedure the sponsor and applicant is: Infineon Technologies AG.
The product was developed by: Infineon Technologies AG.
The certification is concluded with the comparability check and the production of this
Certification Report. This work was completed by the BSI.
6
Information Technology Security Evaluation Facility
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BSI-DSZ-CC-0786-2012 Certification Report
4 Validity of the Certification Result
This Certification Report only applies to the version of the product as indicated. The
confirmed assurance package is only valid on the condition that
● all stipulations regarding generation, configuration and operation, as given in the
following report, are observed,
● the product is operated in the environment described, where specified in the following
report and in the Security Target.
For the meaning of the assurance levels please refer to the excerpts from the criteria at
the end of the Certification Report.
The Certificate issued confirms the assurance of the product claimed in the Security Target
at the date of certification. As attack methods evolve over time, the resistance of the
certified version of the product against new attack methods needs to be re-assessed.
Therefore, the sponsor should apply for the certified product being monitored within the
assurance continuity program of the BSI Certification Scheme (e.g. by a re-certification).
Specifically, if results of the certification are used in subsequent evaluation and certification
procedures, in a system integration process or if a user's risk management needs regularly
updated results, it is recommended to perform a re-assessment on a regular e.g. annual
basis.
In case of changes to the certified version of the product, the validity can be extended to
the new versions and releases, provided the sponsor applies for assurance continuity (i.e.
re-certification or maintenance) of the modified product, in accordance with the procedural
requirements, and the evaluation does not reveal any security deficiencies.
5 Publication
The product Infineon smartcard IC (Security Controller) M7794 A11 with optional
RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox v1.02.013 has been included in the
BSI list of the certified products, which is published regularly (see also Internet:
https://www.bsi.bund.de and [5]). Further information can be obtained from BSI-Infoline
+49 228 9582-111. Further copies of this Certification Report can be requested from the
developer7
of the product. The Certification Report may also be obtained in electronic form
at the internet address stated above.
7
Infineon Technologies AG
Am Campeon 1-12
85579 Neubiberg
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BSI-DSZ-CC-0786-2012 Certification Report
B Certification Results
The following results represent a summary of
● the Security Target of the sponsor for the Target of Evaluation,
● the relevant evaluation results from the evaluation facility, and
● complementary notes and stipulations of the certification body.
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Certification Report BSI-DSZ-CC-0786-2012
1 Executive Summary
The Target of Evaluation (TOE) is the Infineon smartcard IC (Security Controller)
M7794 A11 with optional RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox
v1.02.013. The TOE provides a 16-bit CPU architecture. The major components of the
core system are the non-standard CPU, the MMU (Memory Management Unit) and MED
(Memory Encryption/Decryption Unit). The coprocessor block contains the processors for
RSA/EC and 3DES/AES processing, while the peripheral block contains the random
number generation and the external interfaces service. The peripheral block contains also
the timers and a watchdog. All data of the memory block is encrypted, RAM and ROM are
equipped with an error detection code and the Solid Flash™ (an Infineon Trade Mark and
stands for Flash EEPROM technology) is equipped with an error correction code (ECC).
The Security modules manage the alarms. Alarms may be triggered when the
environmental conditions are outside the specified operational range. The block diagram of
the TOE is shown in [6] and [7], Figure 1. The TOE comprises as one part the hardware of
the smart card security controller in various configurations.
The TOE is able to communicate using either its contact based or contactless interface.
The implemented dual interface provides the flexibility to use different communication
protocols: e.g. ISO 7816, ISO 14443 Type A and Type B, FELICA® - ISO/IEC 18092
passive mode, Mifare compatible Interface [13] or the Digital Contactless Bridge mode
(DCLB) can be chosen and configured. The DCLB mode enables the use of an external
analogue interface or near field communication (NFC) modem via the ISO-pads. Those
external analogue modems are typically deemed for applications running in mobile devices
and are not part of this TOE. Whether the DCLB option is available or not is a configuration
applied in TOE production which cannot be changed afterwards.
This TOE is intended to be used in smart cards for particularly security relevant
applications and for its previous use as developing platform for smart card operating
systems according to the life cycle model from [8]. The term Smartcard Embedded
Software is used in the following for all operating systems and applications stored and
executed on the TOE. The TOE is the platform for the Smartcard Embedded Software. The
Smartcard Embedded Software itself is not part of the TOE.
The TOE is represented by various configurations called products. All are derived from the
same configurable hardware M7794. The degree of freedom for configuring the TOE is
predefined by Infineon Technologies AG. For more details please refer to the Security
Target [7], chapter 2.2.7.
The symmetric coprocessor (SCP) combines both AES and triple DES with dual-key or
triple-key hardware acceleration. The asymmetric crypto coprocessor, called Crypto2304T
in the following, supports RSA-2048 bit (4096-bit with CRT) and Elliptic Curve (EC)
cryptography, for example.
The software part of the TOE consists of the cryptographic libraries RSA and EC and the
supporting Toolbox and Base Libraries. If RSA or EC or Toolbox is part of the shipment, the
Base Library is automatically included. The Base Library provides the low level interface to
the asymmetric cryptographic coprocessor for the cryptographic libraries and has no user
interface. It does not support any security relevant policy or function.
The cryptographic libraries RSA and EC and the Toolbox library are delivery options. If one
of the libraries RSA, EC or Toolbox is delivered, the Base Library is automatically part of it.
Therefore the user may choose a free combination of these libraries. In the case of
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BSI-DSZ-CC-0786-2012 Certification Report
deselecting one or several of these libraries the TOE does not provide the corresponding
functionality for Additional Specific Security Functionality Rivest-Shamir-Adleman
Cryptography (RSA) and/or Elliptic Curve Cryptography (EC). The Toolbox and Base
Library are no cryptographic libraries and provide no additional specific security
functionality.
The RSA library is used to provide a high-level interface to RSA (Rivest, Shamir, Adleman)
cryptography implemented on the hardware component Crypto2304T and includes
countermeasures against SPA, DPA and DFA attacks. The hardware Crypto2304T unit
provides the basic long number calculations (add, subtract, multiply, square with 1100 bit
numbers) with high performance. The RSA library is delivered as object code. The RSA
library can perform RSA operations from 512 to 4096 bits. The key lengths below 1024 bits
are not included in the certificate.
The EC library is used to provide a high-level interface to Elliptic Curve cryptography
implemented on the hardware component Crypto2304T and includes countermeasures
against SPA, DPA and DFA attacks. The routines are used for ECDSA signature
generation, ECDSA signature verification, ECDSA key generation and Elliptic Curve Diffie-
Hellman key agreement. The EC library is delivered as object code. The certification
covers the standard NIST and Brainpool Elliptic Curves with key lengths of 192 to 521 bits.
For more details please refer to the Security Target [6] and Security Target Lite [7], chapter
1.2.
This TOE is equipped with Flash Loader software (FL). It supports download of user
software or parts of it to Solid Flash™. After completion of the download the Flash Loader
can be deactivated permanently by the user. For more details please refer to the Security
Target [6] and [7], chapter 2.2.2.
The Security Target [6] is the basis for this certification. It is based on the certified
Protection Profile Security IC Platform Protection Profile, Version 1.0, 15 June 2007, BSI-
CC-PP-0035-2007 [8].
The TOE Security Assurance Requirements (SAR) are based entirely on the assurance
components defined in Part 3 of the Common Criteria (see part C or [1], Part 3 for details).
The TOE meets the assurance requirements of the Evaluation Assurance Level EAL 4
augmented by ALC_DVS.2, ATE_DPT.2 and AVA_VAN.5.
The TOE Security Functional Requirements (SFR) relevant for the TOE are outlined in the
Security Target [6] and [7], chapter 7. They are selected from Common Criteria Part 2 and
some of them are newly defined. Thus the TOE is CC Part 2 extended.
The TOE Security Functional Requirements are implemented by the following TOE
Security Features:
TOE Security Features Addressed issue
SF_DPM Device Phase Management
SF_PS Protection against Snooping
SF_PMA Protection against Modification Attacks
SF_PLA Protection against Logical Attacks
SF_CS Cryptographic Support
Table 1: TOE Security Functionalities
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Certification Report BSI-DSZ-CC-0786-2012
For more details please refer to the Security Target [6] and Security Target Lite [7], chapter
8.
The assets to be protected by the TOE are defined in the Security Target [6] and Security
Target Lite [7], chapter 4.1.2. Based on these assets the TOE Security Environment is
defined in terms of Assumptions, Threats and Organisational Security Policies. This is
outlined in the Security Target [7] chapter 4.2.
The vulnerability assessment results as stated within this certificate do not include a rating
for those cryptographic algorithms and their implementation suitable for encryption and
decryption (see BSIG Section 9, Para. 4, Clause 2).
The certification results only apply to the version of the product indicated in the certificate
and on the condition that all the stipulations are kept as detailed in this Certification
Report. This certificate is not an endorsement of the IT product by the Federal Office for
Information Security (BSI) or any other organisation that recognises or gives effect to this
certificate, and no warranty of the IT product by BSI or any other organisation that
recognises or gives effect to this certificate, is either expressed or implied.
2 Identification of the TOE
The Target of Evaluation (TOE) is called:
Infineon smartcard IC (Security Controller) M7794 A11 with optional RSA2048/4096
v1.02.013 EC v1.02.013 and Toolbox v1.02.013
The following table outlines the TOE deliverables:
No Type Identifier Release Form of delivery
1 HW M7794 Smart Card IC
A11 (produced in
Dresden)
Wafer or packaged module
2 FW Flash Loader
FW Identifier
77.017.12.0
Stored in reserved area of
User ROM on the IC (patch
in NVM)
3 FW
STS Self Test Software (the IC
Dedicated Test Software)
FW Identifier
77.017.12.0
Stored in Test ROM on the
IC (patch in NVM)
4 FW
RMS Resource Management System
(the IC Dedicated Support Software)
FW Identifier
77.017.12.0
Stored in reserved area of
User ROM on the IC (patch
in NVM)
5 FW SAM library
FW Identifier
77.017.12.0)
Stored in reserved area of
User ROM on the IC (patch
in NVM)
6 SW
NVM image (including Embedded
Software and crypto libraries)
–
Stored in Flash memory on
the IC
7 SW RSA library (optional)
RSA2048 v1.02.013
RSA4096 v1.02.013
Object code in electronic
form
8 SW EC library (optional) EC v1.02.013
Object code in electronic
form
9 SW Toolbox (optional) Toolbox v1.02.013
Object code in electronic
form
10 DOC
SLx 70 Family Production and
Personalization User’s Manual
2011-10-20 Hardcopy and pdf-file
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BSI-DSZ-CC-0786-2012 Certification Report
No Type Identifier Release Form of delivery
11 DOC
M7794 Controller Product Group for
Payment Applications Hardware
Reference Manual
2011-11-02 Hardcopy or pdf-file
12 DOC M7790 M7793 M7794 Errata Sheet 2011-12-06 Hardcopy or pdf-file
13 DOC
M7794 Security Guidelines User’s
Manual
2011-12-05 Hardcopy or pdf-file
14 DOC
SLE 70 Family Programmer’s
Reference User’s Manual
2011-08-19 Hardcopy and pdf-file
15 DOC
SLE77 Asymmetric Crypto Library for
Crypto@2304T RSA / ECC / Toolbox
(1.02.013)
2011-06-07 Hardcopy and pdf-file
16 DOC Crypto@2304T User Manual 2010-03-23 Hardcopy and pdf-file
17 DOC
AMM Advanced Mode for Mifare-
Compatible Technology Addendum to
M7794 Hardware Reference Manual
2011-11-03 Hardcopy or pdf-file
Table 2: Deliverables of the TOE
A processing step during production testing incorporates the chip-individual features into
the hardware of the TOE. The individual TOE hardware is uniquely identified by its serial
number. The serial number comprises the lot number, the wafer number and the
coordinates of the chip on the wafer. Each individual TOE can therefore be traced
unambiguously and thus assigned to the entire development and production process.
As the TOE is under control of the user software, the TOE Manufacturer can only
guarantee the integrity up to the delivery procedure. It is in the responsibility of the
Composite Product Manufacturer to include mechanisms in the implemented software
(developed by the IC Embedded Software Developer) which allows detection of
modifications after the delivery.
The hardware part of the TOE is identified by M7794 A11. Another characteristic of the
TOE are the chip identification data. These chip identification data is accessible via the
Generic Chip Identification Mode (GCIM). This GCIM outputs amongst other identifiers for
the platform, chip mode, ROM code, chip type, design step, fabrication facility, wafer, die
position, and firmware. Thereby, the exact and clear identification of any product with its
exact configuration of this TOE is given. Additionally, dedicated RMS functions [16],
chapter 8.21, allow a customer to extract the present hardware configuration and the
original Chip Identifier Byte, which was valid before blocking of the NVM.
In addition to the hardware part, the TOE consists of firmware parts and software parts.
The software parts are the crypto Library RSA, the crypto Library EC, the Toolbox and the
Base Library. The firmware parts are the RMS Library, the Service Algorithm (SAM), the
STS firmware for test purpose, providing some functionality to the IC Embedded Software,
the Flash Loader for downloading user software to the NVM and the Mifare The Mifare
compatible software interface, accessible via RMS routines, if the Mifare compatible
interface option is active.
Note that the Mifare compatible Interface portion is always present but deactivated in case
of non-Mifare compatible Interface derivatives. The STS is implemented in a separated
Test-ROM being part of the TOE. For the version number of firmware and software parts of
the TOE refer to table 2.
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3 Security Policy
The Security Policy is expressed by the set of Security Functional Requirements and
implemented by the TOE.
The Security Policy of the TOE is to provide basic security functionalities to be used by the
smart card operating system and the smart card application thus providing an overall
smart card system security. Therefore, the TOE will implement a symmetric cryptographic
block cipher algorithm (Triple-DES and AES) to ensure the confidentiality of plain text data
by encryption and to support secure authentication protocols and it will provide a True
Random Number Generator (TRNG).
The RSA Library is used to provide a high level interface to RSA (Rivest, Shamir, Adleman)
cryptography implemented on the hardware component Crypto2304T and includes
countermeasures against SPA, DPA and DFA attacks. The EC Library is used to provide a
high level interface to Elliptic Curve cryptography implemented on the hardware
component Crypto2304T and includes countermeasures against SPA, DPA and DFA
attacks.
As the TOE is a hardware security platform, the security policy of the TOE is also to
provide protection against leakage of information (e.g. to ensure the confidentiality of
cryptographic keys during AES, Triple-DES, RSA and EC cryptographic functions
performed by the TOE), against physical probing, against malfunctions, against physical
manipulations and against abuse of functionality. Hence the TOE shall
● maintain the integrity and the confidentiality of data stored in the memory of the TOE
and
● maintain the integrity, the correct operation and the confidentiality of security
functionalities (security mechanisms and associated functions) provided by the TOE.
4 Assumptions and Clarification of Scope
The Assumptions defined in the Security Target and some aspects of Threats and
Organisational Security Policies are not covered by the TOE itself. These aspects lead to
specific security objectives to be fulfilled by the TOE-Environment. The following topics are
of relevance: protection during packaging, finishing and personalization, usage of
hardware platform and treatment of user data. The augmented organizational security
policy P.Add-Functions, derived from the additional security functionality of the
cryptographic libraries, the augmented assumption A.Key-Function, related to the usage of
key-depending functions, and the threat of memory access violation T.Mem-Access, due to
specific TOE memory access control functionality, have been added. Details can be found
in the Security Target [6] and Security Target Lite [7], chapter 4.3.
5 Architectural Information
The TOE is an integrated circuits (IC) providing a platform to a smart card operating
system and smart card application software. A top level block diagram and a list of
subsystems can be found within the TOE description of the Security Target Lite [7], chapter
2.1.
The TOE provides a 16-bit CPU-architecture. The major components of the core system
are the non-standard CPU, the MMU (Memory Management Unit) and MED (Memory
Encryption/Decryption Unit). The TOE implements a 16-MByte linear addressable memory
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BSI-DSZ-CC-0786-2012 Certification Report
space, a simple scalable Memory Management concept and a scalable stack size. The
flexible memory concept consists of ROM and Solid Flash™.
The symmetric coprocessor (SCP) combines both AES and triple DES with dual-key or
triple-key hardware acceleration. The asymmetric crypto coprocessor, called Crypto2304T
in the following, supports RSA-2048 bit (4096-bit with CRT) and Elliptic Curve (EC)
cryptography, for example.
The software part of the TOE consists of the cryptographic libraries RSA and EC, the
Toolbox and Base library. If RSA or EC or Toolbox is part of the shipment, the Base Library
is automatically included. The Base Library provides the low level interface to the
asymmetric cryptographic coprocessor and has no user available interface.
Part of the evaluation are the RSA straight operations with key lengths from 1024 bits to
2048 bits, and the RSA CRT operations with key lengths of 1024 bits to 4096 bits. Note
that key lengths below 1024 bits are not included in the certificate.
The Flash Loader is a firmware located in the user-ROM and allowing downloading the
user software or parts of it to the EEPROM memory. After completion of the download the
Flash Loader can be permanently deactivated by the user.
For more details please refer to the Security Target Lite [7], chapter 1.2 and 2.2.2.
6 Documentation
The evaluated documentation as outlined in table 2 is being provided with the product to
the customer. This documentation contains the required information for secure usage of
the TOE in accordance with the Security Target.
Additional obligations and notes for secure usage of the TOE as outlined in chapter 10 of
this report have to be followed.
7 IT Product Testing
The tests performed by the developer were divided into six categories:
1. Technology development tests as the earliest tests to check the technology against
the specification and to get the technology parameters used in simulations of the
circuitry (this testing is not strictly related to Security Functionalities);
2. Tests which are performed in a simulation environment with different tools for the
analogue circuitries and for the digital parts of the TOE;
3. Regression tests of the hardware within a simulation environment based on special
software dedicated only for the regression tests;
4. Regression tests which are performed for the IC Dedicated Test Software and for
the IC Dedicated Support Software on emulator versions of the TOE and within a
software simulation of chip in special hardware;
5. Characterisation and verification tests to release the TOE to production:
a) used to determine the behaviour of the chip with respect to different operating
conditions and varied process parameters (often also referred to as characterisation
tests);
b) special verification tests for Security Functionalities which were done with
samples of the TOE (referred also as developers security evaluation) and which
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include also layout tests by automatic means and optical control, in order to verify
statements concerning the layout;
6. Functional production tests, which are done for every chip to check its correct
functionality as a last step of the production process (phase 3).
The developer tests cover all security functionalities and all security mechanisms as
identified in the functional specification.
The evaluators were able to repeat the tests of the developer either using the library of
programs, tools and prepared chip samples delivered to the evaluator or at the developers
site. They performed independent tests to supplement, augment and to verify the tests
performed by the developer. The tests of the developer were repeated by sampling, by
repetition of complete regression tests and by software routines developed by the
evaluators and computed on samples with an evaluation operating system. For the
developer tests repeated by the evaluators other test parameters were used and the test
equipment was varied. Security features of the TOE realised by specific design and layout
measures were checked by the evaluators during layout inspections both in design data
and on the final product.
The evaluation has shown that the actual version of the TOE provides the security
functionalities as specified by the developer. The test results confirm the correct
implementation of the TOE security functionalities.
For penetration testing the evaluators took all security functionalities into consideration.
Intensive penetration testing was planned based on the analysis results and performed for
the underlying mechanisms of security functionalities using bespoke equipment and expert
know how. The penetration tests considered both the physical tampering of the TOE and
attacks which do not modify the TOE physically. The penetration tests results confirm that
the TOE is resistant to attackers with high attack potential in the intended environment for
the TOE.
8 Evaluated Configuration
This certification covers the following configurations of the TOE:
● Smartcard IC M7794 A11.
Depending on the blocking configuration a M7794 product can have different user
available memory sizes and can come with or without individual accessible cryptographic
co-processors.
For example a product with the M-number M7794 in the field can come in one project with
the fully available Solid Flash™ or in another project with equal or any other Solid Flash-
size below the physical implementation size, depending on the user requirements. And
more, the user is free to choice prior to production, whether he needs the symmetric co-
processor SCP, or the asymmetric co-processor Crypto2304T, or both, or none of them. In
addition, the user is also free to choice whether the TOE comes with a free combination of
delivered cryptographic libraries or without any.
Type Name Version number / patch
Hardware M7794 A11 Development code A11
Firmware FW Identifier including RMS, STS, FL, SAM and Mifare 77.017.12.0
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Type Name Version number / patch
Software RSA crypto library (optional) RSA2048 v1.02.013
RSA4096 v1.02.013
EC library (optional) EC v1.02.013
Toolbox (optional) Toolbox v1.02.013
Table 3: Identification of the TOE
The entire configuration is done during the manufacturing process of the TOE according to
the choice of the user or by Bill Per Use (BPU). BPU allows a customer to block chips (to
the configuration listed in Table 2) on demand at customer´s premises. Customers, who
intend to use this feature receive the TOEs in a predefined configuration, e.g. no blocking
applied. The blocking information is part of a chip configuration area. The blocking
information can be modified by customers using specific APDUs. Once final blocking is
done, further modifications are disabled. All differences between the products of this TOE
are realized by means of blocking of NVM without changing the hardware. Therefore, all
products of this TOE are equal from hardware perspective. The dedicated RMS functions
allow a customer to extract the present hardware configuration and the original Chip
Identifier Byte, which was valid before blocking. The blocking mechanism is also part of
the evaluation. For more details please refer to the Security Target Lite [7], chapter 2.2.7
and 2.2.8.
9 Results of the Evaluation
9.1 CC specific results
The Evaluation Technical Report (ETR) [9] was provided by the ITSEF according to the
Common Criteria [1], the Methodology [2], the requirements of the Scheme [3] and all
interpretations and guidelines of the Scheme (AIS) [4] as relevant for the TOE.
The Evaluation Methodology CEM [2] was used for those components up to EAL 5
extended by advice of the Certification Body for components beyond EAL 5 and guidance
specific for the technology of the product [4] (AIS 34).
The following guidance specific for the technology was used:
● The Application of CC to Integrated Circuits
● The Application of Attack Potential to Smartcards
● Functionality classes and evaluation methodology of physical random number
generators
(see [4], AIS 25, AIS 26, AIS 31).
To support composite evaluations according to AIS 36 the document ETR for composite
evaluation [10] was provided and approved. This document provides details of this
platform evaluation that have to be considered in the course of a composite evaluation on
top.
The assurance refinements outlined in the Security Target were followed in the course of
the evaluation of the TOE.
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As a result of the evaluation the verdict PASS is confirmed for the following assurance
components:
● All components of the EAL 4 package including the class ASE as defined in the CC (see
also part C of this report)
● The components ALC_DVS.2, ATE_DPT.2 and AVA_VAN.5 augmented for this TOE
evaluation.
The evaluation has confirmed:
● PP Conformance: Security IC Platform Protection Profile, Version 1.0, 15 June 2007,
BSI-CC-PP-0035-2007 [8]
● for the Functionality: PP conformant plus product specific extensions
Common Criteria Part 2 extended
● for the Assurance: Common Criteria Part 3 conformant
EAL 4 augmented by ALC_DVS.2, ATE_DPT.2 and AVA_VAN.5
For specific evaluation results regarding the development and production environment see
annex B in part D of this report.
The results of the evaluation are only applicable to the TOE as defined in chapter 2 and
the configuration as outlined in chapter 8 above.
9.2 Results of cryptographic assessment
The vulnerability assessment results as stated within this certificate do not include a rating
for those cryptographic algorithms and their implementation suitable for encryption and
decryption (see BSIG Section 9, Para. 4, Clause 2). This holds for: SF_CS (Cryptographic
Support).
The following cryptographic algorithms are used by the TOE to enforce its security policy:
● algorithms for the encryption and decryption: 3DES, AES, RSA and EC
The strength of the cryptographic algorithms was not rated in the course of the product
certification (see BSIG Section 9, Para. 4, Clause 2). But Cryptographic Functionalities
with a security level of 80 bits or lower can no longer be regarded as secure against
attacks with high attack potential without considering the application context. Therefore for
these functions it shall be checked whether the related crypto operations are appropriate
for the intended system. Some further hints and guidelines can be derived from the
'Technische Richtlinie BSI TR-02102' (www.bsi.bund.de).
The Cryptographic Functionalities 2-key Triple DES (3DES), RSA 1024 provided by the
TOE achieves a security level of maximum 80 Bits (in general context).
10 Obligations and Notes for the Usage of the TOE
The documents as outlined in table 2 contain necessary information about the usage of the
TOE and all security hints therein have to be considered. In addition all aspects of
assumptions, threats and policies as outlined in the Security Target not covered by the
TOE itself need to be fulfilled by the operational environment of the TOE.
The customer or user of the product shall consider the results of the certification within his
system risk management process. In order for the evolution of attack methods and
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techniques to be covered, he should define the period of time until a re-assessment for the
TOE is required and thus requested from the sponsor of the certificate.
The limited validity for the usage of cryptographic algorithms as outlined in chapter 9 has
to be considered by the user and his system risk management process.
Some security measures are partly implemented in the hardware and require additional
configuration or control or measures to be implemented by the IC Dedicated Support
Software or Embedded Software.
For this reason the TOE includes guidance documentation (see table 2) which contains
guidelines for the developer of the IC Dedicated Support Software and Embedded
Software on how to securely use the microcontroller chip and which measures have to be
implemented in the software in order to fulfil the security requirements of the Security
Target of the TOE.
In the course of the evaluation of the composite product or system it must be examined if
the required measures have been correct and effectively implemented by the software.
Additionally, the evaluation of the composite product or system must also consider the
evaluation results as outlined in the document ETR for composite evaluation [10].
In addition, the following aspects need to be fulfilled when using the TOE:
● All security hints described in the delivered documents [13] to [19] have to be
considered.
The Composite Product Manufacturer receives all necessary recommendations and hints
to develop his software in form of the delivered documentation.
● All security hints described in [12] have to be considered.
In addition the following hint resulting from the evaluation of the ALC evaluation aspect has
to be considered:
● The IC Embedded Software Developer can deliver his software either to Infineon to let
them implement it in the TOE (in Flash memory) or to the Composite Product
Manufacturer to let him download the software in the Flash memory.
The delivery procedure from the IC Embedded Software Developer to the Composite
Product Manufacturer is not part of this evaluation and a secure delivery is required.
11 Security Target
For the purpose of publishing, the Security Target [7] of the Target of Evaluation (TOE) is
provided within a separate document as Annex A of this report. It is a sanitised version of
the complete Security Target [6] used for the evaluation performed. Sanitisation was
performed according to the rules as outlined in the relevant CCRA policy (see AIS 35 [4]).
12 Definitions
12.1 Acronyms
AES Advanced Encryption Standard
AIS31 “Anwendungshinweise und Interpretationen zu ITSEC und CC
Funktionalitätsklassen und Evaluationsmethodologie für physikalische
Zufallszahlengeneratoren”
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APB™ Advanced Peripheral Bus
APDU Application Protocol Data Unit
API Application Programming Interface
AXI™ Advanced eXtensible Interface Bus Protocol
BPU Bill Per Use
BSI Bundesamt für Sicherheit in der Informationstechnik / Federal Office for
Information Security, Bonn, Germany
BSIG BSI-Gesetz / Act on the Federal Office for Information Security
CC Common Criteria for IT Security Evaluation
CEM Common Methodology for Information Technology Security Evaluation
CI Chip Identification Mode (STS-CI)
CIM Chip Identification Mode (STS-CI), same as CI
CPU Central Processing Unit
CCRA Common Criteria Recognition Arrangement
Crypto2304T Asymmetric Cryptographic Processor
CRC Cyclic Redundancy Check
CRT Chinese Reminder Theorem
DCLB Digital Contactless Bridge
DES Data Encryption Standard; symmetric block cipher algorithm
DPA Differential Power Analysis
DFA Differential Failure Analysis
EAL Evaluation Assurance Level
EC Elliptic Curve Cryptography
ECC Error Correction Code
ECDH Elliptic Curve Diffie–Hellman
ECDSA Elliptic Curve Digital Signature Algorithm
EDC Error Detection Code
EDU Error Detection Unit
EEPROM Electrically Erasable and Programmable Read Only Memory
EMA Electro Magnetic Analysis
Flash EEPROM Flash Memory
FL Flash Loader software
FW Firmware
GCIM Generic Chip Identification Mode
HW Hardware
IC Integrated Circuit
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ICO Internal Clock Oscillator
ID Identification
IMM Interface Management Module
IT Information Technology
ITSEF Information Technology Security Evaluation Facility
ITP Interrupt and Peripheral Event Channel Controller
I/O Input/Output
IRAM Internal Random Access Memory
MED Memory Encryption and Decryption
MMU Memory Management Unit
NVM Non-Volatile Memory
OS Operating system
ST Security Target
PEC Peripheral Event Channel
PP Protection Profile
PRNG Pseudo Random Number Generator
PROM Programmable Read Only Memory
RAM Random Access Memory
RMS Resource Management System
RNG Random Number Generator
ROM Read Only Memory
RSA Rives-Shamir-Adleman Algorithm
SAM Service Algorithm Minimal
SCP Symmetric Cryptographic Processor
SF Security Feature
SFR Special Function Register, as well as Security Functional Requirement,
the specific meaning is given in the context
SOLID FLASH™ An Infineon Trade Mark and Stands for Flash EEPROM Technology
SPA Simple Power Analysis
STS Self Test Software
SW Software
SO Security Objective
TOE Target of Evaluation
TM Test Mode (STS)
TSF TOE Security Functions
TRNG True Random Number Generator
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TSC TOE Security Functions Control
TSF TOE Security Functionality
UART Universal Asynchronous Receiver/Transmitter
UM User Mode (STS)
UmSLC User Mode Security Life Control
WDT Watch Dog Timer
XRAM eXtended Random Access Memory
3DES Triple DES Encryption Standards
12.2 Glossary
Augmentation - The addition of one or more requirement(s) to a package.
Extension - The addition to an ST or PP of functional requirements not contained in part 2
and/or assurance requirements not contained in part 3 of the CC.
Formal - Expressed in a restricted syntax language with defined semantics based on well-
established mathematical concepts.
Informal - Expressed in natural language.
Object - An passive entity in the TOE, that contains or receives information, and upon
which subjects perform operations.
Protection Profile - An implementation-independent statement of security needs for a
TOE type.
Security Target - An implementation-dependent statement of security needs for a specific
identified TOE.
Semiformal - Expressed in a restricted syntax language with defined semantics.
Subject - An active entity in the TOE that performs operations on objects.
Target of Evaluation - A set of software, firmware and/or hardware possibly accompanied
by guidance.
TOE Security Functionality - combined functionality of all hardware, software, and
firmware of a TOE that must be relied upon for the correct enforcement of the SFRs
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13 Bibliography
[1] Common Criteria for Information Technology Security Evaluation, Version 3.1,
Part 1: Introduction and general model, Revision 3, July 2009
Part 2: Security functional components, Revision 3, July 2009
Part 3: Security assurance components, Revision 3, July 2009
[2] Common Methodology for Information Technology Security Evaluation (CEM),
Evaluation Methodology, Version 3.1, Rev. 3, July 2009
[3] BSI certification: Procedural Description (BSI 7125)
[4] Application Notes and Interpretations of the Scheme (AIS) as relevant for the TOE8
.
[5] German IT Security Certificates (BSI 7148), periodically updated list published also
in the BSI Website
[6] Security Target, M7794 A11 including optional Software Libraries RSA – EC –
Toolbox, Version 2.2, 2011-12-13, Infineon Technologies AG (confidential document)
[7] Security Target Lite, M7794 A11, Version 1.0, 2011-12-21, Infineon Technologies AG
(sanitized public document)
[8] Security IC Platform Protection Profile, Version 1.0, 15.06.2007, registered and
certified by Bundesamt für Sicherheit in der Informationstechnik (BSI) under
reference BSI-CC-PP-0035-2007
[9] Evaluation Technical Report, BSI-DSZ-CC-0786, M7794 A11, Version 3, 2012-01-
16, TÜV Informationstechnik GmbH – Evaluation Body for IT Security (confidential
document)
[10] ETR for composite evaluation according to AIS 36 for the Product M7794 A11,
Version 3, 2012-01-16, TÜV Informationstechnik GmbH, Evaluation Body for IT
Security (confidential document)
[11] Configuration Management Scope M7794 A11 including optional Software Libraries
RSA – EC – Toolbox, Version 1.1, 2011-11-22, Infineon Technologies AG
(confidential document)
8
specifically
• AIS 20, Version 1, 2. December 1999, Funktionalitätsklassen und Evaluationsmethodologie für
deterministische Zufallszahlengeneratoren
• AIS 25, Version 7, 30.06.2011, Anwendung der CC auf Integrierte Schaltungen including JIL
Document and CC Supporting Document
• AIS 26, Version 8, 08.06.2011, Evaluationsmethodologie für in Hardware integrierte Schaltungen
including JIL Document and CC Supporting Document
• AIS 31, Version 1, 25 Sept. 2001 Funktionalitätsklassen und Evaluationsmethodologie für
physikalische Zufallszahlengeneratoren
• AIS 32, Version 7, 08.06.2011, CC-Interpretationen im deutschen Zertifizierungsschema
• AIS 34, Version 3, 3 September 2009, Evaluation Methodology for CC Assurance Classes for EAL5+
(CCv2.3 & CCv3.1) and EAL6 (CCv3.1)
• AIS 36, Version 3, 19 October 2010, Kompositionsevaluierung including JIL Document and CC
Supporting Document
• AIS 38, Version 2.0, 28 September 2007, Reuse of evaluation results
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[12] SLx 70 Family Production and Personalization User’s Manual, Version 2011-10-20,
2011-10-20, Infineon Technologies AG
[13] AMM Advanced Mode for Mifare Compatible Technology Addendum to M7794
Hardware Reference Manual, Rev.1.1, Version 1.0, 2011-11-03, Infineon
Technologies AG
[14] M7790 M7793 M7794 Errata Sheet, Version 2011-12-06, 2011-12-06, Infineon
Technologies AG
[15] M7794 Security Guidelines User’s Manual, Version 2011-12-05, 2011-12-05,
Infineon Technologies AG
[16] SLE 70 Family Programmer’s Reference User’s Manual, Version 2011-08-19, 2011-
08-19, Infineon Technologies AG
[17] SLE77 Asymmetric Crypto Library for Crypto@2304T RSA / ECC / Toolbox User
Interface (1.02.013), Version 1.02.013. 2011-06-07, Infineon Technologies AG
[18] Crypto@2304T User Manual, Version 2010-03-23, 2010-03-23, Infineon
Technologies AG
[19] M7794 Controller Product Group for Payment Applications Hardware Reference
Manual, Version 1.1,. 2011-11-02, Infineon Technologies AG.
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C Excerpts from the Criteria
CC Part1:
Conformance Claim (chapter 10.4)
“The conformance claim indicates the source of the collection of requirements that is met
by a PP or ST that passes its evaluation. This conformance claim contains a CC
conformance claim that:
● describes the version of the CC to which the PP or ST claims conformance.
● describes the conformance to CC Part 2 (security functional requirements) as either:
– CC Part 2 conformant - A PP or ST is CC Part 2 conformant if all SFRs in that
PP or ST are based only upon functional components in CC Part 2, or
– CC Part 2 extended - A PP or ST is CC Part 2 extended if at least one SFR in
that PP or ST is not based upon functional components in CC Part 2.
● describes the conformance to CC Part 3 (security assurance requirements) as either:
– CC Part 3 conformant - A PP or ST is CC Part 3 conformant if all SARs in that
PP or ST are based only upon assurance components in CC Part 3, or
– CC Part 3 extended - A PP or ST is CC Part 3 extended if at least one SAR in
that PP or ST is not based upon assurance components in CC Part 3.
Additionally, the conformance claim may include a statement made with respect to
packages, in which case it consists of one of the following:
● Package name Conformant - A PP or ST is conformant to a pre-defined package
(e.g. EAL) if:
– the SFRs of that PP or ST are identical to the SFRs in the package, or
– the SARs of that PP or ST are identical to the SARs in the package.
● Package name Augmented - A PP or ST is an augmentation of a predefined package
if:
– the SFRs of that PP or ST contain all SFRs in the package, but have at least
one additional SFR or one SFR that is hierarchically higher than an SFR in the
package.
– the SARs of that PP or ST contain all SARs in the package, but have at least
one additional SAR or one SAR that is hierarchically higher than an SAR in the
package.
Note that when a TOE is successfully evaluated to a given ST, any conformance claims of
the ST also hold for the TOE. A TOE can therefore also be e.g. CC Part 2 conformant.
Finally, the conformance claim may also include two statements with respect to Protection
Profiles:
● PP Conformant - A PP or TOE meets specific PP(s), which are listed as part of the
conformance result.
● Conformance Statement (Only for PPs) - This statement describes the manner in
which PPs or STs must conform to this PP: strict or demonstrable. For more
information on this Conformance Statement, see Annex D.”
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CC Part 3:
Class APE: Protection Profile evaluation (chapter 10)
“Evaluating a PP is required to demonstrate that the PP is sound and internally consistent,
and, if the PP is based on one or more other PPs or on packages, that the PP is a correct
instantiation of these PPs and packages. These properties are necessary for the PP to be
suitable for use as the basis for writing an ST or another PP.
Assurance Class Assurance Components
Class APE: Protection
Profile evaluation
APE_INT.1 PP introduction
APE_CCL.1 Conformance claims
APE_SPD.1 Security problem definition
APE_OBJ.1 Security objectives for the operational environment
APE_OBJ.2 Security objectives
APE_ECD.1 Extended components definition
APE_REQ.1 Stated security requirements
APE_REQ.2 Derived security requirements
APE: Protection Profile evaluation class decomposition”
Class ASE: Security Target evaluation (chapter 11)
“Evaluating an ST is required to demonstrate that the ST is sound and internally
consistent, and, if the ST is based on one or more PPs or packages, that the ST is a
correct instantiation of these PPs and packages. These properties are necessary for the
ST to be suitable for use as the basis for a TOE evaluation.”
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Assurance Class Assurance Components
Class ASE: Security
Target evaluation
ASE_INT.1 ST introduction
ASE_CCL.1 Conformance claims
ASE_SPD.1 Security problem definition
ASE_OBJ.1 Security objectives for the operational environment
ASE_OBJ.2 Security objectives
ASE_ECD.1 Extended components definition
ASE_REQ.1 Stated security requirements
ASE_REQ.2 Derived security requirements
ASE_TSS.1 TOE summary specification
ASE_TSS.2 TOE summary specification with architectural design
summary
ASE: Security Target evaluation class decomposition
Security assurance components (chapter 7)
“The following Sections describe the constructs used in representing the assurance
classes, families, and components.“
“Each assurance class contains at least one assurance family.”
“Each assurance family contains one or more assurance components.”
The following table shows the assurance class decomposition.
Assurance Class Assurance Components
ADV: Development ADV_ARC.1 Security architecture description
ADV_FSP.1 Basic functional specification
ADV_FSP.2 Security-enforcing functional specification
ADV_FSP.3 Functional specification with complete summary
ADV_FSP.4 Complete functional specification
ADV_FSP.5 Complete semi-formal functional specification with
additional error information
ADV_FSP.6 Complete semi-formal functional specification with
additional formal specification
ADV_IMP.1 Implementation representation of the TSF
ADV_IMP.2 Implementation of the TSF
ADV_INT.1 Well-structured subset of TSF internals
ADV_INT.2 Well-structured internals
ADV_INT.3 Minimally complex internals
ADV_SPM.1 Formal TOE security policy model
ADV_TDS.1 Basic design
ADV_TDS.2 Architectural design
ADV_TDS.3 Basic modular design
ADV_TDS.4 Semiformal modular design
ADV_TDS.5 Complete semiformal modular design
ADV_TDS.6 Complete semiformal modular design with formal high-
level design presentation
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Assurance Class Assurance Components
AGD:
Guidance documents
AGD_OPE.1 Operational user guidance
AGD_PRE.1 Preparative procedures
ALC: Life cycle support
ALC_CMC.1 Labelling of the TOE
ALC_CMC.2 Use of a CM system
ALC_CMC.3 Authorisation controls
ALC_CMC.4 Production support, acceptance procedures and
automation
ALC_CMC.5 Advanced support
ALC_CMS.1 TOE CM coverage
ALC_CMS.2 Parts of the TOE CM coverage
ALC_CMS.3 Implementation representation CM coverage
ALC_CMS.4 Problem tracking CM coverage
ALC_CMS.5 Development tools CM coverage
ALC_DEL.1 Delivery procedures
ALC_DVS.1 Identification of security measures
ALC_DVS.2 Sufficiency of security measures
ALC_FLR.1 Basic flaw remediation
ALC_FLR.2 Flaw reporting procedures
ALC_FLR.3 Systematic flaw remediation
ALC_LCD.1 Developer defined life-cycle model
ALC_LCD.2 Measurable life-cycle model
ALC_TAT.1 Well-defined development tools
ALC_TAT.2 Compliance with implementation standards
ALC_TAT.3 Compliance with implementation standards - all parts
ATE: Tests
ATE_COV.1 Evidence of coverage
ATE_COV.2 Analysis of coverage
ATE_COV.3 Rigorous analysis of coverage
ATE_DPT.1 Testing: basic design
ATE_DPT.2 Testing: security enforcing modules
ATE_DPT.3 Testing: modular design
ATE_DPT.4 Testing: implementation representation
ATE_FUN.1 Functional testing
ATE_FUN.2 Ordered functional testing
ATE_IND.1 Independent testing – conformance
ATE_IND.2 Independent testing – sample
ATE_IND.3 Independent testing – complete
AVA: Vulnerability
assessment
AVA_VAN.1 Vulnerability survey
AVA_VAN.2 Vulnerability analysis
AVA_VAN.3 Focused vulnerability analysis
AVA_VAN.4 Methodical vulnerability analysis
AVA_VAN.5 Advanced methodical vulnerability analysis
Assurance class decomposition
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Evaluation assurance levels (chapter 8)
“The Evaluation Assurance Levels (EALs) provide an increasing scale that balances the
level of assurance obtained with the cost and feasibility of acquiring that degree of
assurance. The CC approach identifies the separate concepts of assurance in a TOE at
the end of the evaluation, and of maintenance of that assurance during the operational use
of the TOE.
It is important to note that not all families and components from CC Part 3 are included in
the EALs. This is not to say that these do not provide meaningful and desirable
assurances. Instead, it is expected that these families and components will be considered
for augmentation of an EAL in those PPs and STs for which they provide utility.”
Evaluation assurance level (EAL) overview (chapter 8.1)
“Table 1 represents a summary of the EALs. The columns represent a hierarchically
ordered set of EALs, while the rows represent assurance families. Each number in the
resulting matrix identifies a specific assurance component where applicable.
As outlined in the next Section, seven hierarchically ordered evaluation assurance levels
are defined in the CC for the rating of a TOE's assurance. They are hierarchically ordered
inasmuch as each EAL represents more assurance than all lower EALs. The increase in
assurance from EAL to EAL is accomplished by substitution of a hierarchically higher
assurance component from the same assurance family (i.e. increasing rigour, scope,
and/or depth) and from the addition of assurance components from other assurance
families (i.e. adding new requirements).
These EALs consist of an appropriate combination of assurance components as described
in Chapter 7 of this CC Part 3. More precisely, each EAL includes no more than one
component of each assurance family and all assurance dependencies of every component
are addressed.
While the EALs are defined in the CC, it is possible to represent other combinations of
assurance. Specifically, the notion of “augmentation” allows the addition of assurance
components (from assurance families not already included in the EAL) or the substitution
of assurance components (with another hierarchically higher assurance component in the
same assurance family) to an EAL. Of the assurance constructs defined in the CC, only
EALs may be augmented. The notion of an “EAL minus a constituent assurance
component” is not recognised by the standard as a valid claim. Augmentation carries with
it the obligation on the part of the claimant to justify the utility and added value of the
added assurance component to the EAL. An EAL may also be augmented with extended
assurance requirements.
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Assurance
Class
Assurance
Family
Assurance Components by
Evaluation Assurance Level
EAL1 EAL2 EAL3 EAL4 EAL5 EAL6 EAL7
Development ADV_ARC 1 1 1 1 1 1
ADV_FSP 1 2 3 4 5 5 6
ADV_IMP 1 1 2 2
ADV_INT 2 3 3
ADV_SPM 1 1
ADV_TDS 1 2 3 4 5 6
Guidance
Documents
AGD_OPE 1 1 1 1 1 1 1
AGD_PRE 1 1 1 1 1 1 1
Life cycle
Support
ALC_CMC 1 2 3 4 4 5 5
ALC_CMS 1 2 3 4 5 5 5
ALC_DEL 1 1 1 1 1 1
ALC_DVS 1 1 1 2 2
ALC_FLR
ALC_LCD 1 1 1 1 2
ALC_TAT 1 2 3 3
Security Target
Evaluation
ASE_CCL 1 1 1 1 1 1 1
ASE_ECD 1 1 1 1 1 1 1
ASE_INT 1 1 1 1 1 1 1
ASE_OBJ 1 2 2 2 2 2 2
ASR_REQ 1 2 2 2 2 2 2
ASE_SPD 1 1 1 1 1 1
ASE_TSS 1 1 1 1 1 1 1
Tests ATE_COV 1 2 2 2 3 3
ATE_DPT 1 1 3 3 4
ATE_FUN 1 1 1 1 2 2
ATE_IND 1 2 2 2 2 2 3
Vulnerability
assessment
AVA_VAN 1 2 2 3 4 5 5
Table 1: Evaluation assurance level summary”
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Evaluation assurance level 1 (EAL1) - functionally tested (chapter 8.3)
“Objectives
EAL1 is applicable where some confidence in correct operation is required, but the threats
to security are not viewed as serious. It will be of value where independent assurance is
required to support the contention that due care has been exercised with respect to the
protection of personal or similar information.
EAL1 requires only a limited security target. It is sufficient to simply state the SFRs that the
TOE must meet, rather than deriving them from threats, OSPs and assumptions through
security objectives.
EAL1 provides an evaluation of the TOE as made available to the customer, including
independent testing against a specification, and an examination of the guidance
documentation provided. It is intended that an EAL1 evaluation could be successfully
conducted without assistance from the developer of the TOE, and for minimal outlay.
An evaluation at this level should provide evidence that the TOE functions in a manner
consistent with its documentation.”
Evaluation assurance level 2 (EAL2) - structurally tested (chapter 8.4)
“Objectives
EAL2 requires the co-operation of the developer in terms of the delivery of design
information and test results, but should not demand more effort on the part of the
developer than is consistent with good commercial practise. As such it should not require a
substantially increased investment of cost or time.
EAL2 is therefore applicable in those circumstances where developers or users require a
low to moderate level of independently assured security in the absence of ready
availability of the complete development record. Such a situation may arise when securing
legacy systems, or where access to the developer may be limited.”
Evaluation assurance level 3 (EAL3) - methodically tested and checked (chapter 8.5)
“Objectives
EAL3 permits a conscientious developer to gain maximum assurance from positive
security engineering at the design stage without substantial alteration of existing sound
development practises.
EAL3 is applicable in those circumstances where developers or users require a moderate
level of independently assured security, and require a thorough investigation of the TOE
and its development without substantial re-engineering.”
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Evaluation assurance level 4 (EAL 4) - methodically designed, tested, and reviewed
(chapter 8.6)
“Objectives
EAL 4 permits a developer to gain maximum assurance from positive security engineering
based on good commercial development practises which, though rigorous, do not require
substantial specialist knowledge, skills, and other resources. EAL 4 is the highest level at
which it is likely to be economically feasible to retrofit to an existing product line.
EAL 4 is therefore applicable in those circumstances where developers or users require a
moderate to high level of independently assured security in conventional commodity TOEs
and are prepared to incur additional security-specific engineering costs.”
Evaluation assurance level 5 (EAL 5) - semiformally designed and tested (chapter
8.7)
“Objectives
EAL 5 permits a developer to gain maximum assurance from security engineering based
upon rigorous commercial development practises supported by moderate application of
specialist security engineering techniques. Such a TOE will probably be designed and
developed with the intent of achieving EAL 5 assurance. It is likely that the additional costs
attributable to the EAL 5 requirements, relative to rigorous development without the
application of specialised techniques, will not be large.
EAL 5 is therefore applicable in those circumstances where developers or users require a
high level of independently assured security in a planned development and require a
rigorous development approach without incurring unreasonable costs attributable to
specialist security engineering techniques.”
Evaluation assurance level 6 (EAL6) - semiformally verified design and tested
(chapter 8.8)
“Objectives
EAL6 permits developers to gain high assurance from application of security engineering
techniques to a rigorous development environment in order to produce a premium TOE for
protecting high value assets against significant risks.
EAL6 is therefore applicable to the development of security TOEs for application in high
risk situations where the value of the protected assets justifies the additional costs.”
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Evaluation assurance level 7 (EAL7) - formally verified design and tested
(chapter 8.9)
“Objectives
EAL7 is applicable to the development of security TOEs for application in extremely high
risk situations and/or where the high value of the assets justifies the higher costs. Practical
application of EAL7 is currently limited to TOEs with tightly focused security functionality
that is amenable to extensive formal analysis.”
Class AVA: Vulnerability assessment (chapter 16)
“The AVA: Vulnerability assessment class addresses the possibility of exploitable
vulnerabilities introduced in the development or the operation of the TOE.”
Vulnerability analysis (AVA_VAN) (chapter 16.1)
"Objectives
Vulnerability analysis is an assessment to determine whether potential vulnerabilities
identified, during the evaluation of the development and anticipated operation of the TOE
or by other methods (e.g. by flaw hypotheses or quantitative or statistical analysis of the
security behaviour of the underlying security mechanisms), could allow attackers to violate
the SFRs.
Vulnerability analysis deals with the threats that an attacker will be able to discover flaws
that will allow unauthorised access to data and functionality, allow the ability to interfere
with or alter the TSF, or interfere with the authorised capabilities of other users.”
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BSI-DSZ-CC-0786-2012 Certification Report
D Annexes
List of annexes of this certification report
Annex A: Security Target provided within a separate document.
Annex B: Evaluation results regarding development
and production environment 39
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Annex B of Certification Report BSI-DSZ-CC-0786-2012
Evaluation results regarding
development and production
environment
The IT product Infineon smartcard IC (Security Controller) M7794 A11 with optional
RSA2048/4096 v1.02.013 EC v1.02.013 and Toolbox v1.02.013 (Target of Evaluation,
TOE) has been evaluated at an approved evaluation facility using the Common
Methodology for IT Security Evaluation (CEM), Version 3.1 extended by advice of the
Certification Body for components beyond EAL 5 and guidance specific for the technology
of the product for conformance to the Common Criteria for IT Security Evaluation (CC),
Version 3.1.
As a result of the TOE certification, dated 27 January 2012, the following results regarding
the development and production environment apply. The Common Criteria assurance
requirements ALC – Life cycle support (i.e. ALC_CMC.4, ALC_CMS.4, ALC_DEL.1,
ALC_DVS.2, ALC_LCD.1 and ALC_TAT.1)
are fulfilled for the development and production sites of the TOE listed below:
Site Address Function
Agrate - DNP DNP Photomask Europe S.p.A.
Via C. Olivetti 2/A
20041 Agrate Brianza
Italy
Mask Production
Augsburg Infineon Technologies AG
Alter Postweg 101
86159 Augsburg
Germany
Development
Bangalore Infineon Technologies India Pvt. Ltd.
13th
Floor, Discoverer Building
International Technology Park
Whitefield Road
Bangalore, India – 560066
Software development and
testing
Bangkok – SmarTrac covered by
AIS47
Smartrac Technology Ltd.,
142/121/115 Moo,
Hi-Tech industrial Estate,
Tambon Ban Laean,
Amphor Bang-Pa-In,
13160 Ayutthaya,
Thailand
Inlay antenna mounting
Bukarest Infineon Technologies Romania
Blvd. Dimitrie Pompeiu Nr. 6
Sector 2
020335 Bucharest,
Romania
Development
Chanhassen Smartrac Technology US Inc.
1546 Lake Drive West
Chanhassen, MN 55317
USA
Inlay antenna mounting
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Site Address Function
Corbeil Essones - Toppan Toppan Photomask, Inc.
European Technology Center
Boulevard John Kennedy 224
91105 Corbeil Essonnes
France
Mask Production
Dresden Infineon Technologies Dresden GmbH
& Co. OHG
Königsbrücker Str. 180
01099 Dresden
Germany
Production, initialisation, pre-
personalisation
Dresden-Toppan Toppan Photomask, Inc
Rähnitzer Allee 9
01109 Dresden
Germany
Mask Production
Graz / Villach / Klagenfurt Infineon Technologies Austria AG
Development Center Graz
Babenbergerstr. 10
8020 Graz
Austria
Infineon Technologies Austria AG
Siemensstr. 2
9500 Villach
Austria
Infineon Technologies Austria AG
Lakeside B05
9020 Klagenfurt
Austria
Development
Großostheim – K&N Infineon Technology AG
DCE
Kühne & Nagel
Stockstädter Strasse 10 – Building 8A
63762 Großostheim
Germany
Distribution Center
Hayward – K&N Kuehne & Nagel
30805 Santana Street
Hayward, CA 94544
U.S.A.
Distribution Center
Hsinchu - ARDT Ardentec Corporation
No. 3, Gungye 3rd Rd.,
Hsin-Chu Industrial Park, Hu-Kou,
Hsin-Chu Hsien, Taiwan 30351, R.O.C.
Taiwan 30351, R.O.C.
Wafer Testing
Manila - Amkor Amkor Technology Philippines
Km. 22 East Service Rd.
South Superhighway
Muntinlupa City 1702
Philipines
Amkor Technology Philippines
119 North Science Avenue
Laguna Technopark, Binan
Laguna 4024
Philipines
Module Mounting
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Site Address Function
Munich Infineon Technologies AG
Am Campeon 1-12
85579 Neubiberg
Infineon Technologies AG
Otto-Hahn-Ring 6
81739 München (Perlach)
Germany
Development, Headquater
Munich - G&D Giesecke & Devrient GmbH
Distribution Center DLC
Prinzregentenstraße 159
81677 Munich
Germany
Distribution Center
Ranzan - Toppan Toppan Printing Co., Ltd.
6-2, Hanami-Dai, Ranzan-Machi, Hiki-
Gun
Saitama 355-0204
Japan
Inlay antenna mounting
Regensburg-West Infineon Technologies AG
Wernerwerkstraße 2
93049 Regensburg
Germany
Smartrac Technology GmbH,
Wernerwerkstraße 2
93049 Regensburg
Germany
Module Mounting
Inlay antenna mounting
Distribution Center
Reichshof - SmarTrac Smartrac Technology Germany
Building RW2
Gewerbeparkstr. 10
51580 Reichshof-Wehnrath
Germany
Inlay antenna mounting
Delivery
Round Rock - Toppan Toppan Printing Company America,
Inc.
Round Rock Site
2175 Greenhill Drive
Round Rock, Texas 78664
Inlay antenna mounting
Singapore - DHL Exel Singapore Pte Ltd
DHL Exel Supply Chian
81, ALPS Avenue
Singapore 498803
Distribution Center
Singapore Kallang Infineon Technologies AG
168 Kallang Way
Singapore 349253
Module Mounting, Electrical
module testing
Tainan - TSMC Taiwan Semiconductor Manufacturing
Company Ltd.
1, Nan-Ke North Rd.
Tainan Science Park
Tainan 741-44
Taiwan
Production, initialisation, pre-
personalisation
Wuxi Infineon Technologies (Wuxi) Co. Ltd.
No. 118, Xing Chuang San Lu
Wuxi-Singapore Industrial Park
Wuxi 214028, Jiangsu
P.R. China
Module Mounting
Distribution Center
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For the sites listed above, the requirements have been specifically applied in accordance
with the Security Target [6]. The evaluators verified, that the threats, security objectives
and requirements for the TOE life cycle phases up to delivery (as stated in the Security
Target [6]) and [7] are fulfilled by the procedures of these sites.
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